https://github.com/gluon/AbletonLive9_RemoteScripts
These files are the uncompyled sources from original Python MIDI Remote Scripts by Ableton.

The first purpose to publish these scripts is the stimulation of developers/hackers/musician/digital artist imagination.
Indeed, you can now code your own behaviors for PUSH, for instance

You can also check my official page about Ableton Live 9 and PUSH : http://julienbayle.net/ableton-push